From de04652ed336e4357f4f5b769794305021f2b6df Mon Sep 17 00:00:00 2001
From: Kaustubh BM <kaustubhbm3574@gmail.com>
Date: Sat, 2 Oct 2021 01:25:07 +0530
Subject: [PATCH] Add files via upload

---
 CHTBCTF/PhaseStream4_CHTB.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 CHTBCTF/PhaseStream4_CHTB.py

diff --git a/CHTBCTF/PhaseStream4_CHTB.py b/CHTBCTF/PhaseStream4_CHTB.py
new file mode 100644
index 0000000..6064765
--- /dev/null
+++ b/CHTBCTF/PhaseStream4_CHTB.py
@@ -0,0 +1,13 @@
+from Crypto.Util.number import *
+known = int("2d0fb3a56aa66e1e44cffc97f3a2e030feab144124e73c76d5d22f6ce01c46e73a50b0edc1a2bd243f9578b745438b00720870e3118194cbb438149e3cc9c0844d640ecdb1e71754c24bf43bf3fd0f9719f74c7179b6816e687fa576abad1955",16)
+ct = int("2767868b7ebb7f4c42cfffa6ffbfb03bf3b8097936ae3c76ef803d76e11546947157bcea9599f826338807b55655a05666446df20c8e9387b004129e10d18e9f526f71cabcf21b48965ae36fcfee1e820cf1076f65",16)
+known = long_to_bytes(known)
+ct= long_to_bytes(ct)
+pt = ""
+for i,j in zip(known,ct):
+    pt += chr(i^j)
+known_text = b"I alone cannot change the world, but I can cast a stone across the water to create many ripples"
+ans = ""
+for i,j in zip(known_text,pt):
+    ans += chr(i^ord(j))
+print(ans)